Three types of projects have been discussed during our education in Industrial project governance; these are product development projects, customer order projects and internal projects. The major differences between these are that they have different sponsors and different purposes. This thesis is about internal projects, a project that are carried out internally in the organisation with the purpose to make a change in the organisation or to improve operational efficiency. The purpose of the thesis is that on the basis of theoretical and empirical material, produce recommendations on how project manager should work with internal projects in order to succeed. Our starting point is two critical success factors, which we have identified on the basis of the obtained knowledge from our project management courses. The thesis is based on literature about project managers and the organisation he or she works in, organisational change and the factors influencing the result, and internal marketing with the purpose to provide the employees with information using an information channel. _x000B__x000B_In order to achieve the above mentioned purpose of the thesis, we have carried out a survey among ten project managers with experiences from internal projects. We have used personal interviews to collect our empirical material and our survey could therefore be resembled to a qualitative study. After that, the collected material have been analyzed and on the basis of that analysis we have come up with a number of recommendations directed to project managers of internal projects. Our recommendations are, in brief, the following: * In order to receive sufficient management support, the project manager has to make sure that the project gain approval in upper management. The effects of this support are access to necessary resources and shows that the project is seen as important to the organisation, which leads to stronger commitment from the employees. Another reason why it is important to gain approval is that the support gives the project high priority. * In order to avoid resistance to the internal project, the project manager should start a dialogue with all staff affected by the project. This dialogue also results in a more positive attitude among the employees. * The project manager has to make the internal project visible in the organisation, since information and communication are considered being the most efficient ways to succeed with an internal project. Recommended information channels are primarily employee meetings and Intranet.